Merge mysql.com:/usr/home/ram/work/bug21587/my50-bug21587

into  mysql.com:/usr/home/ram/work/bug21587/my51-bug21587

1 files changed, 38 insertions, 0 deletions

diff --git a/sql/sql_handler.cc b/sql/sql_handler.cc
index 0d893a6c9be..a6ab100cad4 100644
--- a/sql/sql_handler.cc
+++ b/sql/sql_handler.cc
@@ -756,3 +756,41 @@ static int mysql_ha_flush_table(THD *thd, TABLE **table_ptr, uint mode_flags)
 
   DBUG_RETURN(0);
 }
+
+
+/*
+  Mark tables for reopen.
+
+  SYNOPSIS
+    mysql_ha_mark_tables_for_reopen()
+    thd                         Thread identifier.
+    table                       Table list to mark for reopen.
+
+  DESCRIPTION
+    For each table found in the handler hash mark it as closed
+    (ready for reopen) and end all index/table scans.
+
+  NOTE
+    The caller must lock LOCK_open.
+*/
+
+void mysql_ha_mark_tables_for_reopen(THD *thd, TABLE *table)
+{
+  DBUG_ENTER("mysql_ha_mark_tables_for_reopen");
+
+  safe_mutex_assert_owner(&LOCK_open);
+  for (; table; table= table->next)
+  {
+    TABLE_LIST *hash_tables;
+    if ((hash_tables= (TABLE_LIST*) hash_search(&thd->handler_tables_hash,
+                                                (byte*) table->alias,
+                                                strlen(table->alias) + 1)))
+    {
+      /* Mark table as ready for reopen. */
+      hash_tables->table= NULL;
+      /* End open index/table scans. */
+      table->file->ha_index_or_rnd_end();
+    }
+  }
+  DBUG_VOID_RETURN;
+}